Maine's 2021 code cycle now governs every common-element rebuild
Maine's 2021 code cycle now governs every common-element rebuild
2026-09-12 · Maine · Compliance
What happened. The Maine Uniform Building and Energy Code — MUBEC — moved to the 2021 code cycle effective 7 April 2025. Any Maine association that has put a major common-element project out to bid since then has been pricing it under a different code than the one its reserve study assumed.1
What was adopted
The Technical Building Codes and Standards Board, under the Office of the State Fire Marshal, adopted the following editions effective 7 April 2025:
- 2021 International Residential Code (IRC)
- 2021 International Building Code (IBC)
- 2021 International Existing Building Code (IEBC)
- 2021 International Energy Conservation Code (IECC)
- 2021 International Mechanical Code (IMC)
- 2019 ASHRAE 62.1 and 62.2 (ventilation)
- 2019 ASHRAE 90.1 (non-residential energy)
- ASTM E-1465-2008 (radon control)
Who has to enforce it
The code applies statewide to new construction and renovation. Municipalities with populations of 4,000 or more must enforce it; smaller municipalities may adopt it voluntarily.
That threshold is the detail that catches Maine associations out, because it means the answer to “does this apply to us” depends on where the buildings sit. A condominium in Portland and one in a town of 1,800 face the same statewide code and potentially different enforcement reality — which matters for permitting timelines, inspection requirements and what a contractor will warrant.
The piece that reaches existing buildings
The International Existing Building Code is the one to read. New construction is the easy case; an association's work is almost always alteration, repair or replacement of an existing structure, and the IEBC is what governs when a repair becomes an alteration, and when an alteration triggers compliance obligations that the original building never had.
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Related Maine HOA Topics
- Maine Office of the State Fire Marshal, MUBEC Standards and Amendments — adopted code editions ↩
- AIA Maine, Updated Maine Building Codes: MUBEC 2021 Adoption Effective April 7th 2025 ↩
- Code of Maine Rules 16-219-D-2, ch. 4, Design and Installation of Life Safety Sprinkler Systems (NFPA 13R, 2016 edition) ↩
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